Without delay, let's solve this. We've got 23 and we will be multiplying it by 102, that is, adding 23 to itself 102 times.
Step 1: 0 + 23 = 23
Step 2: 23 + 23 = 46
Step 3: 46 + 23 = 69
Step 4: 69 + 23 = 92
Step 5: 92 + 23 = 115
Step 6: 115 + 23 = 138
Step 7: 138 + 23 = 161
Step 8: 161 + 23 = 184
Step 9: 184 + 23 = 207
Step 10: 207 + 23 = 230
Step 11: 230 + 23 = 253
Step 12: 253 + 23 = 276
Step 13: 276 + 23 = 299
Step 14: 299 + 23 = 322
Step 15: 322 + 23 = 345
Step 16: 345 + 23 = 368
Step 17: 368 + 23 = 391
Step 18: 391 + 23 = 414
Step 19: 414 + 23 = 437
Step 20: 437 + 23 = 460
Step 21: 460 + 23 = 483
Step 22: 483 + 23 = 506
Step 23: 506 + 23 = 529
Step 24: 529 + 23 = 552
Step 25: 552 + 23 = 575
Step 26: 575 + 23 = 598
Step 27: 598 + 23 = 621
Step 28: 621 + 23 = 644
Step 29: 644 + 23 = 667
Step 30: 667 + 23 = 690
Step 31: 690 + 23 = 713
Step 32: 713 + 23 = 736
Step 33: 736 + 23 = 759
Step 34: 759 + 23 = 782
Step 35: 782 + 23 = 805
Step 36: 805 + 23 = 828
Step 37: 828 + 23 = 851
Step 38: 851 + 23 = 874
Step 39: 874 + 23 = 897
Step 40: 897 + 23 = 920
Step 41: 920 + 23 = 943
Step 42: 943 + 23 = 966
Step 43: 966 + 23 = 989
Step 44: 989 + 23 = 1012
Step 45: 1012 + 23 = 1035
Step 46: 1035 + 23 = 1058
Step 47: 1058 + 23 = 1081
Step 48: 1081 + 23 = 1104
Step 49: 1104 + 23 = 1127
Step 50: 1127 + 23 = 1150
Step 51: 1150 + 23 = 1173
Step 52: 1173 + 23 = 1196
Step 53: 1196 + 23 = 1219
Step 54: 1219 + 23 = 1242
Step 55: 1242 + 23 = 1265
Step 56: 1265 + 23 = 1288
Step 57: 1288 + 23 = 1311
Step 58: 1311 + 23 = 1334
Step 59: 1334 + 23 = 1357
Step 60: 1357 + 23 = 1380
Step 61: 1380 + 23 = 1403
Step 62: 1403 + 23 = 1426
Step 63: 1426 + 23 = 1449
Step 64: 1449 + 23 = 1472
Step 65: 1472 + 23 = 1495
Step 66: 1495 + 23 = 1518
Step 67: 1518 + 23 = 1541
Step 68: 1541 + 23 = 1564
Step 69: 1564 + 23 = 1587
Step 70: 1587 + 23 = 1610
Step 71: 1610 + 23 = 1633
Step 72: 1633 + 23 = 1656
Step 73: 1656 + 23 = 1679
Step 74: 1679 + 23 = 1702
Step 75: 1702 + 23 = 1725
Step 76: 1725 + 23 = 1748
Step 77: 1748 + 23 = 1771
Step 78: 1771 + 23 = 1794
Step 79: 1794 + 23 = 1817
Step 80: 1817 + 23 = 1840
Step 81: 1840 + 23 = 1863
Step 82: 1863 + 23 = 1886
Step 83: 1886 + 23 = 1909
Step 84: 1909 + 23 = 1932
Step 85: 1932 + 23 = 1955
Step 86: 1955 + 23 = 1978
Step 87: 1978 + 23 = 2001
Step 88: 2001 + 23 = 2024
Step 89: 2024 + 23 = 2047
Step 90: 2047 + 23 = 2070
Step 91: 2070 + 23 = 2093
Step 92: 2093 + 23 = 2116
Step 93: 2116 + 23 = 2139
Step 94: 2139 + 23 = 2162
Step 95: 2162 + 23 = 2185
Step 96: 2185 + 23 = 2208
Step 97: 2208 + 23 = 2231
Step 98: 2231 + 23 = 2254
Step 99: 2254 + 23 = 2277
Step 100: 2277 + 23 = 2300
Step 101: 2300 + 23 = 2323
Step 102: 2323 + 23 = 2346

So, 23*102 = 2346